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１９９８～１９９９年 ,宣化县引进东北大豆品种王中王进行示范推广 ,结果表现出较强的抗病性和丰产性 ,平均６６７ （亩）产３５０ （公斤）以上 ,收益１０５０元 ,产量、效益均高出当地品种科丰６号。王中王又名８９—９,生育期１１５天。株高１１０ （厘米）左右。第一叶
From 1998 to 1999, Xuanhua County introduced the demonstration and popularization of the northeast soybean Wang Zhongwang. The results showed strong disease resistance and high yield with an average yield of 667 (mu) (350 kg) and a yield of 1050 yuan Kefeng 6 are higher than the local varieties. Wang also known as 89-9, the growth period of 115 days. Plant height of 110 (centimeters) or so. The first leaf